povOS is an operating system for the PC, with ACPI.

NOTE: I am preparing to make the OS cross-architecture and multicore, this will take some time. Meanwhile I am developing a new bootloader, iperboot, check it out!

Features

• custom bootloader
• custom standard library
• interrupts
• input (supports multiple keyboard layouts)
• textbuffer
• framebuffer
• console
• tty
• time tracking
• sleep
• memory management
  • physical memory management
  • paging
  • virtual memory manager
  • free-list based memory allocator
  • heap
  • higher half kernel, RAM mapped in high memory
• multitasking
  • tasks
  • context switching
  • scheduler
  • semaphores
  • mutexes
  • spinlocks
• filesystem
  • virtual filesystem
• random number generation
• logging
• drivers:
  • PS/2
  • UART
  • VGA
  • ISA
  • ATA
  • PIC (Programmable Interrupt Controller)
  • PIT (Programmable Interrupt Timer)
  • HPET (High Precision Event Timer)
  • Keyboard
  • ACPI
  • PCI/PCIe
  • edu
  • IOAPIC

The implementation is clean and readable, headers are documentation.

General overview of the programming environment:

Usage

Compile and run with qemu:

make -B && make qemu

Compile and run with bochs:

make -B && make bochs

Run inside GDB (with debug info):

./scripts/debug x86_64